diff options
Diffstat (limited to 'src/network')
| -rw-r--r-- | src/network/sendmsg.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/network/sendmsg.c b/src/network/sendmsg.c index 164c28d7..5f080007 100644 --- a/src/network/sendmsg.c +++ b/src/network/sendmsg.c @@ -1,5 +1,7 @@ #include <sys/socket.h> #include <limits.h> +#include <string.h> +#include <errno.h> #include "syscall.h" #include "libc.h" @@ -7,10 +9,21 @@ ssize_t sendmsg(int fd, const struct msghdr *msg, int flags) { #if LONG_MAX > INT_MAX struct msghdr h; + struct cmsghdr chbuf[1024/sizeof(struct cmsghdr)+1], *c; if (msg) { h = *msg; h.__pad1 = h.__pad2 = 0; msg = &h; + if (h.msg_controllen) { + if (h.msg_controllen > 1024) { + errno = ENOMEM; + return -1; + } + memcpy(chbuf, h.msg_control, h.msg_controllen); + h.msg_control = chbuf; + for (c=CMSG_FIRSTHDR(&h); c; c=CMSG_NXTHDR(&h,c)) + c->__pad1 = 0; + } } #endif return socketcall_cp(sendmsg, fd, msg, flags, 0, 0, 0); |